“Your heart’s in your throat, because you don’t know what you’re going to find,” deMarrais said.

Pascack Hills high is ahead of schedule in meeting Janet’s Law. By September of this year, it requires New Jersey schools to have defibrillators within range during student athletic practices and events.

“I really think that this is a good example of when we have practices and the case where our staff, our coaching staff, is trained in CPR, we have a defibrillator on site, as well as making sure we have a certified trainer on site,” School Superintendent Eric Gundersen told CBS 2. “In unfortunate circumstances like this, we’re able to respond in a quick and efficient manner.”

The law is named after Janet Zilinski, an 11-year-old who died in 2006 shortly after cheerleading practice.

“This is the perfect example of the importance of having that defibrillator and being prepared,” deMarrais said. “You never think it’s going to happen to you.”

The boy was not identified Wednesday night. He was breathing on his own when he was taken to The Valley Hospital in Ridgewood.